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Refer to the given reaction. RuBP+O(2)...

Refer to the given reaction.
`RuBP+O_(2)underset("oxygenase")overset("RuBP")rarr"Phosphoglyceric acid"+"Phosphoglycolic acid"`
It is the first reaction of

A

`C_(3)` pathway

B

`C_(4)` pathway

C

`C_(2)` pathway

D

glycolysis.

Text Solution

Verified by Experts

The correct Answer is:
C
At high temperature, RuBisco funtions as oxygenase and instead offixing `CO_(2)` oxidises RuBP to produce a 3-C phosphoglyceric acid and a 2-C phosphoglycolate. This is the first reaction of photorespiration or `C_(2)` cycle.
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NCERT FINGERTIPS-PHOTOSYNTHESIS IN HIGHER PLANTS-Photosynthesis In Higher Plants
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  2. The enzyme RuBisCO has

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  3. Refer to the given reaction. RuBP+O(2)underset("oxygenase")overset("...

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  5. How may ATP and NADPH(2) are respectively produced in the process of p...

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  6. During C(2) cycle, there occurs

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  7. Which organelle out of these does not participate in photorespiration?

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  8. The law of limiting factors was given by in the year

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  9. Study the given graph showing the efect of light intensity on the rate...

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  10. Quality of light refers to

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  11. Given table shows the CO(2) compensation point and optimum CO(2) conce...

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  12. A point at which illuminated plant parts stop absorbing CO(2) from the...

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  13. When temperature is increased from minimum to optimum, rate of phosynt...

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  14. Tropical plants have a temperature optimum than the plants adapted to...

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  15. Warbung effect refers to

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  16. Which of the following factors, besides being one of the reactants in ...

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  17. Which of the following is not an external factor influencing photosyth...

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  18. The factor which is not limiting in normal conditions for photosynthes...

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  19. Consider the following statements regarding starch and sucrose synthes...

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